*{
	margin: 0;
	padding: 0;
}
.aa{
	margin: 0 auto;
	width: 426px;
	height: 130px;
	
}
.bb{
	position: relative;
	top: -30px;
	left: 250px;
}
.cc>li{
	width: 20px;
	height: 20px;
	border-radius: 10px;
	background-color: #FFFFFF;
	display: inline-block;
	margin-left: 10px;
	
}
